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ASSE 1081 2014

ASSE 1081 2014

$24.38

ASSE Standard #1081-2014 Performance Requirements for Backflow Preventers with Integral Pressure Reducing Boiler Feed Valve and Intermediate Atmospheric Vent Style for Domestic and Light Commercial Water Distribution Systems

Published By Publication Date Number of Pages
ASSE 2014 28
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Performance Requirements for Backflow Preventers with Integral Pressure Reducing Boiler Feed Valve and Intermediate Atmospheric Vent Style for Domestic and Light Commercial Water Distribution Systems (ANSI Approved: April 2020) ASSE 1081 provides performance standards and testing procedures for pressure reducing boiler feed valves that offer protection of the potable water supply by means of an integral backflow preventer with an intermediate atmospheric vent. Devices covered by this standard are installed in plumbing systems to fill and reduce static boiler pressure under normal conditions, as well as prevent backflow into potable water supply lines when pressures fluctuate.

PDF Catalog

PDF Pages PDF Title
9 Section I
1.0 General
1.1 Application
1.2 Scope
10 1.3 Limitations on Design
1.4 Reference Standards
11 Section II
2.0 Test Specimens
2.1 Samples Submitted for Test
2.2 Samples Tested
2.3 Drawings
2.4 Rejection
12 Section III
3.0 Performance Requirements and Compliance Testing
3.1 Hydrostatic Test #1 of Complete Device
Figure 1
13 3.2 Hydrostatic Test #2 of Complete Device
3.3 Hydrostatic Test of Downstream Check – Test #3
3.4 Shock (Water Hammer) Test of the Device – Test #4
14 3.5 Reseating Tightness of the Downstream Check – Test #5
3.6 Reseating Tightness of the Upstream Check – Test #6
15 3.7 Atmospheric Vent Valve Leakage – Test #7
3.8 Atmospheric Vent Open Pressure – Test #8
Table 1
3.9 Reduced Downstream Pressure Deviation Test – Test # 9
16 Table 2
Table 3
17 3.10 Reduced Pressure Adjustment Range Test – Test #10
3.11 Backflow Through the Upstream Check
18 Figure 2
3.12 Back-Siphonage – Test #1
19 Figure 3
Table 4
20 3.13 Back-Siphonage Backpressure – Test #2
3.14 Deterioration at Extremes of Manufacturer’s Temperature Range
22 Figure 4
Table 5
23 Section IV
4.0 Detailed Requirements
4.1 Materials
24 4.2 Markings
4.3 Installation Instructions
25 Section V
5.0 Definitions

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ASSE 1081 2014
$24.38